<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Document</title>
</head>
<body>
  <div id="test">

    <!-- 
        遍历对象: v-for="(value, key) in 对象"  value: 属性值, key是属性名
        遍历字符串: v-for="(letter, index) in 字符串"  letter: 字母, index: 下标
        遍历数值: v-for="(value, index) in 数值"   value: 是1开始依次递增的数值, index: 下标
    -->
    <h2>遍历对象</h2>
    <h2>遍历字符串</h2>
    <h2>遍历数值</h2>
  </div>

  <script src="../js/vue.js"></script>
  <script>
  </script>
</body>
</html>